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Now showing items 41-50 of 79

#### Biological nanopore MspA for DNA sequencing

(2013-07-25)

Unlocking the information hidden in the human genome provides insight into the inner workings of complex biological systems and can be used to greatly improve health-care. In order to allow for widespread sequencing, new technologies are required that provide fast and inexpensive readings of DNA. Nanopore sequencing is a ...

#### The Dynamics of the Unitary Fermi Gas

(2013-11-14)

This dissertation is concerned with the dynamics of dilute Fermi gases in the unitary regime with short-range interaction and infinite scattering length. This work represents the first ab- initio simulation of quantized vortex generation and domain walls generation. In addition, the interaction of quantized vortices and domain ...

#### Karlsruhe Tritium Experiment: Detector System Commissioning and In-Situ PIN-Diode Array Dead-Layer Measurement

(2013-07-23)

The <underline>Ka</underline>rlsruhe <underline>Tri</underline>tium <underline>N</underline>eutrino (KATRIN) experimental goal is to measure the neutrino mass to 0.2 eV sensitivity at the 90 percent confidence level. This is an order of magnitude more sensitive than the two most recent direct neutrino mass measurements. The ...

#### Developments for a measurement of the beta-nu correlation and determination of the recoil charge state distribution in 6He beta decay

The beta-nu of a pure Gamow-Teller beta decay such as the 6He decay is sensitive to tensor-type weak currents predicted by theories beyond the Standard Model. An experiment is developed at University of Washington aiming at measuring the coefficient a_{beta-nu} of 6He decays to the 0.1% level and looking for its deviation ...

#### Variability of Point Sources of Gamma Rays Detected by the Fermi Large-Area Telescope

The Large Area Telescope (LAT) aboard the Fermi Gamma-Ray Space Telescope has revolutionized gamma-ray astronomy, allowing the detection of thousands of point sources of gamma rays. Variability studies are of significant interest as a potential source of information about the emission mechanisms, and as a means to identify ...

#### Multi-Hadron Observables from Lattice Quantum Chromodynamics

We describe formal work that relates the finite-volume spectrum in a quantum field theory to scattering and decay amplitudes. This is of particular relevance to numerical calculations performed using Lattice Quantum Chromodynamics (LQCD). Correlators calculated using LQCD can only be determined on the Euclidean time axis. For ...

#### Nuclei as Probes of Meson-Nucleon Interactions at High and Low Energy

(2013-07-23)

This dissertation explores two main topics: 1) Color Transparency and quasi-elastic knockout reactions involving pions and &rho mesons; and 2) determination of the J/&psi-nucleon scattering amplitude and scattering length via J/&psi electroproduction on the deuteron. It is shown that at the energies available at the COMPASS ...

#### Multiphysics Simulation of Nanostructured Semiconductor Devices

(2014-02-24)

This dissertation describes how to utilize multiphysics simulation techniques to develop physical (optics and device) models of nanostructured semiconductor devices. A hierarchy of approaches (ab-initio, continuum, transfer-matrix, finite-difference time-domain) is used to bridge the gaps in computational efficiency and ...

#### Relative Cross Section Measurment of Inclusive Charged Current Multiple Pion Production to Inclusive Charged Current from Muon Neutrinos at the Near Detector of the T2K Experiment

The Tokai-to-Kamiokande (T2K) experiment is an off-axis, long baseline neutrino oscillation experiment based in Japan. One of the largest sources of systematic uncertainty in the oscillation analysis is the uncertainty on neutrino cross sections. In this thesis, we use the π<super>0</super> detector (P0D) of the T2K Near ...

#### Topics in field theory and particle phenomenology

In this thesis, I focus on a few different applications of modern quantum field theory. I start with a model beyond the standard model: Little Flavor Theory and its related collider phenomenology. This model combines a flavor theory with Little Higgs theory, to explain the origin of flavor and little hierarchy problem at the ...